EP2761043A1 - White metal babbitt for rolling mill bushing - Google Patents
White metal babbitt for rolling mill bushingInfo
- Publication number
- EP2761043A1 EP2761043A1 EP12758948.9A EP12758948A EP2761043A1 EP 2761043 A1 EP2761043 A1 EP 2761043A1 EP 12758948 A EP12758948 A EP 12758948A EP 2761043 A1 EP2761043 A1 EP 2761043A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- weight
- white metal
- cobalt
- tin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
- C22C13/02—Alloys based on tin with antimony or bismuth as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/121—Use of special materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2204/00—Metallic materials; Alloys
- F16C2204/30—Alloys based on one of tin, lead, antimony, bismuth, indium, e.g. materials for providing sliding surfaces
- F16C2204/34—Alloys based on tin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls
Definitions
- Embodiments and aspects of the present invention relate to tin based white metal alloys useful in various industrial applications, including the bushings of rolling mill oil film bearings.
- ASTM #2 The most prominent white metal alloy used in oil film bearings in the rolling mill field is described in ASTM B23 #2, (referred to here as ASTM #2) and is comprised primarily of tin, with antimony and copper, as alloying elements. ASTM #2 is well understood and is readily deposited onto bushing shells via centrifugal casting, spray deposition, or welding. Unfortunately, ASTM #2 has relatively low fatigue resistance, which limits load capacity of bearings made with this material.
- the alloy of Roeingh is suitable for centrifugal casting applications. But due to the brittleness of the zinc component, this alloy cannot be readily drawn into wire for use in spray and welding applications.
- U.S. Patent No. 4,140,835 (Goddard) and U.K. Application No. 2146354 A disclose cobalt as a component of tin based white metal alloys that also include cadmium.
- Cadmium is a known carcinogen that has been banned from most workplaces and thus is undesirable.
- U.S. Patent No. 4,795,682 discloses a tin/cobalt alloy useful as a sacrificial coating designed to absorb particulates. Such coatings lack the toughness required for heavily loaded oil film bearing applications, and the disclosed use of cobalt at elevated percentage levels would inhibit the flow characteristics necessary in a casting or welding process.
- aspects of the present invention relate to a tin based white metal alloy that is universally useful in centrifugal casting, spraying, and welding applications. Aspects of the present invention also relate to a tin based white metal alloy having the elevated strength and fatigue resistance required for use in heavily loaded oil film bearings of the type commonly found in the metals industry.
- aspects of the present invention further relate to a tin based white metal alloy that is low in toxicity and generally free from carcinogenic components, including cadmium and the like.
- aspects of the present invention may be achieved by replacing zinc and silver components of the alloy disclosed in the above referenced U.S. Patent No. 6,589,372 Bl with cobalt in amounts ranging between about 0.1%-0.7% by weight, with amounts ranging between 0.2% and 0.5% being considered optimal.
- Embodiments of the present invention are not limited to use in the described systems.
- a tin based white metal alloy in accordance with the present invention includes as principal components tin, antimony, and copper, to which cobalt has been added. Addition of cobalt in amounts above approximately 0.7% by weight has been found to disadvantageously lower the fluidity of the resulting alloy. Thus, cobalt additions of between about 0.1%-0.7% by weight have been found to be effective in achieving the above-stated objectives, with additions of between about 0.2%-0.5% by weight being optimal.
- Tin based white metal alloys of the present invention consist essentially of the components listed in the following examples:
- alloys of the present invention may be centrifugally cast, and may also be drawn into wire for use in spraying or welding applications. Further, alloys of the present invention have the strength and fatigue resistance required for use in heavily loaded bearing applications, including the steel making industry applications, while being free of components that either are banned or otherwise detrimental.
- Fatigue resistance of white metal alloys can be determined experimentally through the use of tension/compression specimens that are cycled until failure. Laboratory test data comparing the alloy of the present invention with commonly used alloys in the field are illustrated in TABLE 1. Based on test data the fatigue strength of the alloy containing 0.3% to 0.5% cobalt has excellent fatigue resistance, exceeding that of other alloys commonly used in the rolling mill application. Test data shown was determined in accordance with ASTM E 466 with an applied load of 7,500 psi (51.7 MPa) and test frequency of 10 Hz. Axial Fatigue Resistance of Various White Metal Alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Sliding-Contact Bearings (AREA)
- Contacts (AREA)
- Coating By Spraying Or Casting (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161541395P | 2011-09-30 | 2011-09-30 | |
US13/590,996 US20130084209A1 (en) | 2011-09-30 | 2012-08-21 | White Metal Babbitt for Rolling Mill Bushing |
PCT/US2012/053004 WO2013048664A1 (en) | 2011-09-30 | 2012-08-30 | White metal babbitt for rolling mill bushing |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2761043A1 true EP2761043A1 (en) | 2014-08-06 |
Family
ID=47992760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12758948.9A Withdrawn EP2761043A1 (en) | 2011-09-30 | 2012-08-30 | White metal babbitt for rolling mill bushing |
Country Status (14)
Country | Link |
---|---|
US (1) | US20130084209A1 (es) |
EP (1) | EP2761043A1 (es) |
JP (1) | JP2014534335A (es) |
KR (1) | KR20140070562A (es) |
CN (1) | CN103842532A (es) |
AR (1) | AR088179A1 (es) |
BR (1) | BR112014007510A2 (es) |
CA (1) | CA2850419A1 (es) |
IN (1) | IN2014DN01803A (es) |
MX (1) | MX2014003658A (es) |
RU (1) | RU2014117637A (es) |
TW (1) | TW201326414A (es) |
WO (1) | WO2013048664A1 (es) |
ZA (1) | ZA201402160B (es) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104412426A (zh) * | 2012-09-06 | 2015-03-11 | 株式会社吴羽 | 非水电解质二次电池负极用碳质材料及其制造方法,以及使用所述碳质材料的负极及非水电解质二次电池 |
AT515099B1 (de) * | 2014-01-31 | 2015-06-15 | Miba Gleitlager Gmbh | Mehrschichtgleitlager |
CN103949614B (zh) * | 2014-05-06 | 2015-12-30 | 浙江机电职业技术学院 | 对开式径向轴瓦产品的制作方法 |
CN110227809B (zh) * | 2018-09-07 | 2022-01-11 | 襄阳航力机电技术发展有限公司 | 一种锡基轴承合金的离心铸造工艺 |
CN114058899A (zh) * | 2022-01-17 | 2022-02-18 | 中机智能装备创新研究院(宁波)有限公司 | 一种锡基巴氏合金的制备方法 |
CN115652137B (zh) * | 2022-03-01 | 2024-03-29 | 中国机械总院集团宁波智能机床研究院有限公司 | 一种锡基巴氏合金及其制备方法、轴瓦 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3563732A (en) * | 1968-02-09 | 1971-02-16 | Daido Metal Co Ltd | Bearing alloys of tin based white metal |
US4140835A (en) * | 1976-06-23 | 1979-02-20 | The Glacier Metal Company Limited | Bearing materials |
JPS53131922A (en) | 1977-04-22 | 1978-11-17 | Daido Metal Co Ltd | Tinnbased white metal bearing alloy |
GB8324353D0 (en) | 1983-09-12 | 1983-10-12 | Darchem Ltd | Materials |
GB8617676D0 (en) | 1986-07-19 | 1986-08-28 | Ae Plc | Bearing alloys |
JP2761181B2 (ja) * | 1993-12-27 | 1998-06-04 | 大同メタル工業株式会社 | 耐熱性及び耐疲労性に優れた錫基ホワイトメタル軸受合金 |
DE19905213A1 (de) * | 1999-02-09 | 2000-08-31 | Sms Demag Ag | Gleitlager |
AT505664B1 (de) * | 2008-03-03 | 2009-03-15 | Miba Gleitlager Gmbh | Gleitlagerlegierung aus weissmetall auf zinnbasis |
AT509112B1 (de) * | 2009-12-10 | 2011-09-15 | Miba Gleitlager Gmbh | Gleitschicht |
-
2012
- 2012-08-21 US US13/590,996 patent/US20130084209A1/en not_active Abandoned
- 2012-08-30 CA CA2850419A patent/CA2850419A1/en not_active Abandoned
- 2012-08-30 WO PCT/US2012/053004 patent/WO2013048664A1/en active Application Filing
- 2012-08-30 BR BR112014007510A patent/BR112014007510A2/pt not_active IP Right Cessation
- 2012-08-30 RU RU2014117637/02A patent/RU2014117637A/ru not_active Application Discontinuation
- 2012-08-30 EP EP12758948.9A patent/EP2761043A1/en not_active Withdrawn
- 2012-08-30 KR KR1020147007898A patent/KR20140070562A/ko not_active Application Discontinuation
- 2012-08-30 MX MX2014003658A patent/MX2014003658A/es unknown
- 2012-08-30 CN CN201280047334.3A patent/CN103842532A/zh active Pending
- 2012-08-30 JP JP2014533539A patent/JP2014534335A/ja active Pending
- 2012-09-28 AR ARP120103609A patent/AR088179A1/es unknown
- 2012-09-28 TW TW101135791A patent/TW201326414A/zh unknown
-
2014
- 2014-03-10 IN IN1803DEN2014 patent/IN2014DN01803A/en unknown
- 2014-03-24 ZA ZA2014/02160A patent/ZA201402160B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2013048664A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2014534335A (ja) | 2014-12-18 |
CN103842532A (zh) | 2014-06-04 |
RU2014117637A (ru) | 2015-11-10 |
KR20140070562A (ko) | 2014-06-10 |
WO2013048664A1 (en) | 2013-04-04 |
AR088179A1 (es) | 2014-05-14 |
TW201326414A (zh) | 2013-07-01 |
MX2014003658A (es) | 2014-05-21 |
CA2850419A1 (en) | 2013-04-04 |
IN2014DN01803A (es) | 2015-05-15 |
ZA201402160B (en) | 2015-05-27 |
BR112014007510A2 (pt) | 2017-04-04 |
US20130084209A1 (en) | 2013-04-04 |
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Legal Events
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17Q | First examination report despatched |
Effective date: 20150325 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20160525 |